13320031121 has 4 divisors (see below), whose sum is σ = 13320293952. Its totient is φ = 13319768292.

The previous prime is 13320031091. The next prime is 13320031133. The reversal of 13320031121 is 12113002331.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 13320031121 - 2⁶ = 13320031057 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 13320031121.

It is not an unprimeable number, because it can be changed into a prime (13320033121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28565 + ... + 165698.

It is an arithmetic number, because the mean of its divisors is an integer number (3330073488).

Almost surely, 2^13320031121 is an apocalyptic number.

It is an amenable number.

13320031121 is a deficient number, since it is larger than the sum of its proper divisors (262831).

13320031121 is an equidigital number, since it uses as much as digits as its factorization.

13320031121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 262830.

The product of its (nonzero) digits is 108, while the sum is 17.

Adding to 13320031121 its reverse (12113002331), we get a palindrome (25433033452).

The spelling of 13320031121 in words is "thirteen billion, three hundred twenty million, thirty-one thousand, one hundred twenty-one".